Fronius TransPocket 125 VRD Bedienungsanleitung Seite 75

Faulty operation Poor ignition properties during MMA welding
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In some cases, arc breaks during welding
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Rod electrode tends to stick
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Poor weld properties
(severe spattering)
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Tungsten electrode melting
Tungsten inclusions in base metal during the ignition phase
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Incorrect welding process selected
Select "MMA welding" or "MMA welding with Cel electrode" process
Starting current too low; electrode sticking during ignition
Increase starting current using HotStart function
Starting current too high; electrode consumed too quickly during ignition or is
generating a lot of spatter
Reduce starting current using SoftStart function
Break voltage (Uco) set too low
Increase break voltage (Uco) in Setup menu
Electrode (e.g. grooved electrode) voltage too high
If possible, use an alternative electrode or a power source with more welding
power
Value of arc-force dynamic parameter (MMA welding) set too low
Increase value of arc-force dynamic parameter
Incorrect electrode polarity
Reverse electrode polarity (refer to manufacturer's instructions)
Poor grounding (earthing) connection
Fasten earthing clamps directly to workpiece
Setup parameters not ideal for selected welding process
Select the optimal settings in the Setup menu for the selected welding pro-
cess
Incorrect tungsten electrode polarity
Connect the TIG welding torch to the (-) current socket
Incorrect (or no) shielding gas
Use inert shielding gas (argon)
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